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CBSE Class 9 Answered

An element has a valency of y. a) What will be the formula of its chloride? b) What will be the formula of its sulphide?
Asked by Yashraj Limkar | 04 Dec, 2013, 06:41: PM
answered-by-expert Expert Answer
(a) Suppose an element 'X' has "y" valency. Now we know that chloride ion has "-1" valency. Hence, the formula will be X1Cly or simply XCly.
(b) Similarly, we know that sulphide ion (S-2) has "-2" valency, then the formula of the compound in which an elemnt 'X' has "y" valency will be X2Cly.
Answered by Prachi Sawant | 05 Dec, 2013, 11:01: AM

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